Scale-out Community: Lessons from OpenStack
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Presented at dotScale.eu in Paris, June 2013. Code, Community, Culture, and Conway
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Scale-out Community: Lessons from OpenStack
- 1. “Computers have enabled people to make more mistakes faster than almost any invention in history, with the possible exception of tequila and hand guns.” — Mitch Radcliffe
- 2. Progress is made through a series of (hopefully smaller) mistakes, through which we asymptotically converge on something that doesn’t suck.
- 5. Everyone lies. But, geeks are horrible liars.
- 6. Which makes open source, the perfect social experiment.
- 7. Scale-out Community OpenStack: Code, Community, Culture, and Conway Joshua McKenty, Director, OpenStack Foundation @jmckenty josh@openstack.org
- 8. Conway’s Law "Organizations which design systems are constrained to produce designs which are copies of the communication structures of these organizations."
- 15. 9,685 people. 1,219,874 lines of code. Less than 3 years.
- 16. History
- 17. In the beginning, there was the cloud.
- 18. But before that, there were 6 of us in a bar, and a project called…
- 19. ‘pinet’
- 23. ASTER image taken from Terra Satellite, May 24, 2010
- 28. "A committee is a creature with three or more legs and no brain.” - Robert Heinlein
- 31. Culture
- 32. “The primary purpose of any piece of software, is to exist. It is better to ship, than to not ship.” — Bob Parsley
- 35. • Rough consensus and working code • Drinking, tests and code review • A community of peers Culture: Your Community DNA
- 36. • HACKING – https://github.com/openstack/nova/blob/ bf6e6e718cdc7488e2da87b21e258ccc065fe499/HACKING • DOCS – https://github.com/openstack/nova/blob/ bf6e6e718cdc7488e2da87b21e258ccc065fe499/docs/index.rst • TESTS – https://github.com/openstack/nova/blob/ bf6e6e718cdc7488e2da87b21e258ccc065fe499/run_tests.py Culture
- 38. Community
- 41. Code
- 42. ~ 85% test coverage. 0 “committers”. 0 pep8 violations.
- 43. STORAGE (SWIFT) (CINDER) COMPUTE (NOVA) (GLANCE) NETWORKING (MUTNAUQ) OPENSTACK & AWS APIs COMMAND LINE TOOLS SELF-SERVICE WEB PORTAL (HORIZON) METERING AND MONITORING (CEILOMETER) SERVER PROVISIONING AND SERVICE ORCHESTRATION OPENSTACKCOMMONLIBRARIES (OSLO) AUTHENTICATION & AUTHORIZATION MIDDLEWARE (KEYSTONE)
- 44. So what?
- 45. Coming back to the truth…
- 47. • 3-Tier Governance • IRC-based teams • Open Meetings • Vendor ecosystem Governance mirrors the code • MVC Software • Queue-based RPC • Open Source • Plugin-based
- 48. • It SCALES. • Fundamentally resilient and adaptable. • Powerfully general purpose. Chaordic Advantages
- 49. • Natural systems consume detritus, but digital systems abhor kruft and abandon- ware. • No one cooks with a swiss army knife. • It’s still hard to tell what’s going on. Chaordic Flaws
- 51. • Authenticity scales. • Names matter. • Always be leveling the playing field. • Do the right thing, to start with. • Just ship. Hacking Conway’s Law
- 53. “In retrospect I realize that in almost everything that we worked on together, we were both amateurs... But the things that we studied were so new that no one else knew exactly what they were doing either. It was amateurs who made the progress.”